CVE catalog
CVE-2026-33637
Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Versions 2.0.0 through 2.14.1 still allow protocol-relative host override when the request targ
- Severity
- Medium · CVSS 6.3
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.27% · Oct 25, 2026
Faraday is an HTTP client library abstraction layer that provides a common interface over many adapters. Versions 2.0.0 through 2.14.1 still allow protocol-relative host override when the request target is passed as a URI object (rather than a String) to Faraday::Connection#build_exclusive_url. This bypasses the February 2026 fix for GHSA-33mh-2634-fwr2 and enables off-host request forgery: a request built from a fixed-base Faraday::Connection can be redirected to an attacker-controlled host, forwarding connection-scoped values such as Authorization headers and default query parameters. This issue has been fixed in version 2.14.3.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ruby-faraday | sid | 2.15.0-1 | fixed |
| Debian | ruby-faraday | forky | 2.15.0-1 | fixed |
| Debian | ruby-faraday | trixie | 2.12.2-1 | not affected |
| Debian | ruby-faraday | bookworm | 1.1.0-7 | not affected |
| Cpe | faraday | Not reported | 2.14.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby-faraday | source | sid | 2.14.3-1 | not yet assigned | Not reported | [1137212] |
| Debian | ruby-faraday | source | forky | 2.14.3-1 | not yet assigned | Not reported | [1137212] |
| Debian | ruby-faraday | source | trixie | Not affected | unimportant | Not reported | [1137212] |
| Debian | ruby-faraday | source | bookworm | Not affected | unimportant | Not reported | [1137212] |
| Cpe | faraday | cpe | Not reported | 2.14.2 | Not reported | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ruby-faraday]Not affected
Details (2)
1.1.0-7· all · bookwormNot affected
nvd · ruby-faraday · debian · bookworm
1.1.0-7· all · bookwormNot affected
nvd · ruby-faraday · debian · bookworm
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-33637]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-33637]
- [https://security-tracker.debian.org/tracker/CVE-2026-33637]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33637.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]